CN208238098U - A kind of system improving district cooling and heating supply backwater temperature difference - Google Patents
A kind of system improving district cooling and heating supply backwater temperature difference Download PDFInfo
- Publication number
- CN208238098U CN208238098U CN201820735160.4U CN201820735160U CN208238098U CN 208238098 U CN208238098 U CN 208238098U CN 201820735160 U CN201820735160 U CN 201820735160U CN 208238098 U CN208238098 U CN 208238098U
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- heat exchanger
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- plate heat
- station
- temperature difference
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Abstract
The utility model provides a kind of system for improving district cooling and heating supply backwater temperature difference, it includes Regional Energy station (1), passes through user's heat exchange station that transmission and distribution network (2) are connected with Regional Energy station (1)；Regional Energy station (1) includes water source heat pump units (1-1)；User's heat exchange station includes the air-conditioning two stage pump (8), level-one plate heat exchanger (3) and second level plate heat exchanger (6) being sequentially connected in series；Level-one plate heat exchanger (3) is connected with the fan coil (4) of terminal temperature difference, and second level plate heat exchanger (6) is connected with solution humidifying unit (5)；Air conditioner cold and hot water returns to Regional Energy station (1) by transmission and distribution network (2) after level-one plate heat exchanger (3) and second level plate heat exchanger (6) heat exchange.The structure design of the utility model is reasonable, and supply backwater temperature difference can be improved, and reduces pipe network transmission & distribution energy consumption；And pipe network caliber can be reduced, and pipe network investment is reduced, and primary energy utilization ratio can be improved, it is good in economic efficiency.
Description
Technical field
The utility model belongs to Regional Energy field, and in particular to a kind of district cooling and heating supply backwater temperature difference of improving is
System.
Background technique
District cooling and heating refers to groups of building in certain area, produces cold water, heat by one or several energy source stations concentration
The cold and hot medium such as water is energized in pipe network transmission & distribution to each single building by region, provides the sky of cold and heat supply service for user
Adjust cold and heat source system.
District heating is designed by system, operation and the unified plan safeguarded bring environmental benefit, with central air conditioning
Cold water produces and sells the scale and benefit generated and brings economic benefit.Therefore it is obtained in the downtown area of some developed countries
More application.
Conventional pump type heat Regional Energy station hot and cold water supply backwater temperature difference is smaller, and pipe network conveys power consumption and energy loss is opposite
Larger, pipe network caliber is big, and initial cost is higher, while the transmission and distribution network of Large Diameter Pipeline also increases the difficulty of construction.
Therefore it needs one kind to can be improved supply backwater temperature difference, reduces pipe network transmission & distribution energy consumption, reduce pipe network investment, promoted economical
The system of benefit.
Utility model content
The purpose of the utility model is to provide a kind of reasonable in design, district cooling and heating supply backwater temperature difference can be improved
System, it is smaller that the utility model can solve prior art supply backwater temperature difference, and pipe network conveys power consumption and energy loss is big, pipe network pipe
The problems such as diameter is big, and initial cost is high, and difficulty of construction is big.
Technical solution: in order to achieve the goal above, the utility model adopts the following technical scheme:
A kind of system improving district cooling and heating supply backwater temperature difference, it includes Regional Energy station, logical with Regional Energy station
Cross the connected user's heat exchange station of transmission and distribution network；
Regional Energy station includes water source heat pump units；User's heat exchange station include air-conditioning two stage pump, level-one plate heat exchanger and
Second level plate heat exchanger；Air-conditioning two stage pump, level-one plate heat exchanger and second level plate heat exchanger are sequentially connected in series；Level-one plate-type heat-exchange
Device is connected with the fan coil of terminal temperature difference, and second level plate heat exchanger is connected with solution humidifying unit；
Air conditioner cold and hot water returns to region by transmission and distribution network after level-one plate heat exchanger and the heat exchange of second level plate heat exchanger
Energy source station.
Preferably, above-described a kind of system for improving district cooling and heating supply backwater temperature difference, Regional Energy
Water circulating pump is provided in standing.
The utility model has the advantages that the utility model compared with prior art the advantages of be:
The structure design of the utility model is reasonable, and supply backwater temperature difference can be improved, and reduces pipe network transmission & distribution energy consumption；And pipe network can be reduced
Caliber reduces pipe network investment, reduces pipeline network construction difficulty；And energy supply radius can be expanded, primary energy utilization ratio is improved, warp is promoted
Ji benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the system provided by the utility model for improving district cooling and heating supply backwater temperature difference.
Specific embodiment
As shown in Figure 1, a kind of system for improving district cooling and heating supply backwater temperature difference, it includes Regional Energy station 1, with area
Domain energy source station 1 passes through user's heat exchange station that transmission and distribution network 2 is connected；
Regional Energy station 1 includes water source heat pump units 1-1；User's heat exchange station includes air-conditioning two stage pump 8, level-one plate-type heat-exchange
Device 3 and second level plate heat exchanger 6；Wherein air-conditioning two stage pump 8, level-one plate heat exchanger 3 and second level plate heat exchanger 6 are successively gone here and there
Connection；Level-one plate heat exchanger 3 is connected with the fan coil 4 of terminal temperature difference, second level plate heat exchanger 6 and 5 phase of solution humidifying unit
Even；
Air conditioner cold and hot water returns to area by transmission and distribution network 2 after level-one plate heat exchanger 3 and second level plate heat exchanger 6 exchange heat
Domain energy source station 1.
When the utility model summer operation, the water source heat pump units 1-1 in Regional Energy station 1 provides 5 DEG C of air conditioning waters,
Through level-one plate heat exchanger 3 heat exchange after be 13 DEG C of return water, while for fan coil 4 provide 7 DEG C/14 DEG C for return water.Through level-one
13 DEG C of return water after plate heat exchanger 3 exchanges heat exchange heat into the concatenated second level plate heat exchanger 6 of level-one plate heat exchanger 3, change
After heat be 18 DEG C of return water, while for solution humidifying unit 5 provide 14 DEG C/19 DEG C for return water.To enlarged region energy source station 1
Supply backwater temperature difference reaches 5 DEG C/18 DEG C.
When the utility model winter operation, the water source heat pump units 1-1 in Regional Energy station 1 provides 46 DEG C of air conditioning hots,
Through level-one plate heat exchanger 3 heat exchange after be 41 DEG C of return water, while for end fan coil 4 provide 45 DEG C/40 DEG C for return water.
41 DEG C of return water after the heat exchange of level-one plate heat exchanger 3 enter to be changed with the concatenated second level plate heat exchanger 6 of level-one plate heat exchanger 3
Heat, after heat exchange be 36 DEG C of return water, while for solution humidifying unit 5 provide 40 DEG C/35 DEG C for return water.To the enlarged region energy
Stand 1 supply backwater temperature difference, reach 46 DEG C/36 DEG C.
The utility model can greatly improve Regional Energy station supply backwater temperature difference, reduce pipe network transmission & distribution energy consumption, reduce pipe network
Caliber reduces pipe network investment, reduces pipeline network construction difficulty, while can expand energy supply radius, improve primary energy utilization ratio, promoted
Economic benefit.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in practical
Within novel protection scope.
Claims (2)
1. a kind of system for improving district cooling and heating supply backwater temperature difference, which is characterized in that it includes Regional Energy station (1), with
Regional Energy station (1) passes through user's heat exchange station that transmission and distribution network (2) are connected；Regional Energy station (1) includes water source heat pump units (1-
1)；User's heat exchange station includes air-conditioning two stage pump (8), level-one plate heat exchanger (3) and second level plate heat exchanger (6)；Air-conditioning second level
Pump (8), level-one plate heat exchanger (3) are sequentially connected in series with second level plate heat exchanger (6)；Level-one plate heat exchanger (3) and end are used
The fan coil (4) at family is connected, and second level plate heat exchanger (6) is connected with solution humidifying unit (5)；Air conditioner cold and hot water is through a step
Regional Energy station (1) is returned to by transmission and distribution network (2) after formula heat exchanger (3) and second level plate heat exchanger (6) heat exchange.
2. a kind of system for improving district cooling and heating supply backwater temperature difference according to claim 1, which is characterized in that region
Water circulating pump (7) are provided in energy source station (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820735160.4U CN208238098U (en) | 2018-05-16 | 2018-05-16 | A kind of system improving district cooling and heating supply backwater temperature difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820735160.4U CN208238098U (en) | 2018-05-16 | 2018-05-16 | A kind of system improving district cooling and heating supply backwater temperature difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208238098U true CN208238098U (en) | 2018-12-14 |
Family
ID=64579502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820735160.4U Expired - Fee Related CN208238098U (en) | 2018-05-16 | 2018-05-16 | A kind of system improving district cooling and heating supply backwater temperature difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208238098U (en) |
-
2018
- 2018-05-16 CN CN201820735160.4U patent/CN208238098U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 Termination date: 20210516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |